Furan-modified compound and oligomer

Abstract

When formula I represents a compound, x is an integer of 1˜5; A including a group formed of ketone, amido, imide, imido, phenyl ether or enol ether group; G is a direct bond, —O—, —N—, —Ar—NH—(CH2)b—, —Ar—O—(CH2)b—, —Ar—O—(CH2)a—NH—(CH2)b—, —(CH2)a—NH—(CH2)b—, —(CH2)a—O—(CH2)b— or —(CH2)a—CH(OH)—(CH2)b—NH—; Ar is substituted or unsubstituted arylene group; a is an integer of 1 to 5; and b is an integer of 0 to 5.

What is claimed is: 
     
       1. A furan-modified oligomer having a structure represented by Formula II: 
       
         
           
           
               
               
           
         
         wherein, y is an integer of 1 to 5; D is a direct bond, —O—, —Ar 2 —NH—(CH 2 ) d —, —Ar 2 —O—(CH 2 ) d —, —Ar 2 —O—(CH 2 ) c —NH—(CH 2 ) d —, —(CH 2 ) c —NH—(CH 2 ) d —, —(CH 2 ) c —O—(CH 2 ) d — or —(CH 2 ) c —CH(OH)—(CH 2 ) d —NH—; Ar 2  is substituted or unsubstituted arylene group; c is an integer of 1 to 5; and d is an integer of 0 to 5, 
         wherein the furan-modified oligomer has a number average molecular weight from 1000 to 12000; 
         wherein B is 
       
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
       B is connected to D at position represented by asterisk (*); m is an integer of 7 to 200; n is an integer of 7 to 200; each of p, r and s is an integer of 1 to 5; q is an integer of 5 to 50; z is an integer of 5 to 20; each of R 1 , R 2 , R 3 , R 4  is independently C 1 -C 5  alkyl; T 1  is a direct bond,
 C 1 -C 12  linear or branched alkyl, —O—, —S— or —NH—; Q is 
 
       
         
           
           
               
               
           
         
         wherein, each of R 9 , R 10  and R 11  is independently CH 3  or C 2 H 5 , T 2  is C 1 -C 12  linear or branched alkyl, and each of i, j and k is an integer of 1 to 5. 
       
     
     
       2. The furan-modified oligomer according to  claim 1 , wherein Ar 2  is substituted or unsubstituted phenylene, biphenylene, naphthylene, thienylene, indolylene, phenanthrylene, indenylene, anthrylene, or fluorenylene group. 
     
     
       3. The furan-modified oligomer according to  claim 1 , wherein Ar 2  is phenylene, biphenylene, naphthylene, thienylene, indolylene, phenanthrylene, indenylene, anthrylene, or fluorenylene group with substitution groups of one to four C 1 -C 6  alkyl groups.